Charlotte's Chamber Closet 1899

If you read about the history of this house, you may recall that Charlotte Hall purchased the house in 1899.  Our contractor, Maurice, just sent me this photo of handwriting he found on a shelf.  I'm assuming Charlotte did some renovation upon purchasing the house and possibly her workers marked things.  The shelf was found in the closet that currently connects what is labeled the Master Bedroom on the floor plans with the Dressing Room.

I'm beginning to wonder if we should mark things for someone else to find in 116 years.

 It reads: Shelf in Charlottes Chamber Closet  Dec 10, 1899

All of the hardwood floors are being torn out and Maurice sent me these photos of writing on the back of some of the floor boards.  I can't make out the first word below...It looks like it starts with an "H" then "asth" or "osth" of July 1899.  Fourth of July makes sense, but it doesn't look like that. Thoughts?

The second one has the surnames of Charlotte and her husband.  I find it interesting the HER last name comes first. Notice too the square nails in both of the boards.  I collected a bunch of them yesterday when I was at the house.